feat: conforms to Sendable

.github/workflows/code-quality.yml

@@ -10,16 +10,16 @@ on:
 
 jobs:
   test-ios:
-    runs-on: macos-14
+    runs-on: macos-15
 
     steps:
       - uses: actions/checkout@v4
 
       - name: Build and test
-        run: xcodebuild test -scheme LLMChatOpenAI -destination 'platform=iOS Simulator,name=iPhone 15 Pro'
+        run: xcodebuild test -scheme LLMChatOpenAI -destination 'platform=iOS Simulator,name=iPhone 16 Pro'
 
   test-macos:
-    runs-on: macos-14
+    runs-on: macos-15
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/deploy-docs.yml

@@ -15,7 +15,7 @@ concurrency:
 
 jobs:
   deploy:
-    runs-on: macos-14
+    runs-on: macos-15
 
     environment:
       name: github-pages

Package.swift

@@ -12,7 +12,7 @@ let package = Package(
             targets: ["LLMChatOpenAI"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/kevinhermawan/swift-json-schema.git", exact: "1.0.3"),
+        .package(url: "https://github.com/kevinhermawan/swift-json-schema.git", .upToNextMajor(from: "2.0.1")),
         .package(url: "https://github.com/apple/swift-docc-plugin.git", .upToNextMajor(from: "1.4.3"))
     ],
     targets: [

Playground/Playground.xcodeproj/project.pbxproj

@@ -286,7 +286,7 @@
 				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SUPPORTS_XR_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -320,7 +320,7 @@
 				SUPPORTS_MAC_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SUPPORTS_XR_DESIGNED_FOR_IPHONE_IPAD = NO;
 				SWIFT_EMIT_LOC_STRINGS = YES;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;

Playground/Playground/ViewModels/AppViewModel.swift

@@ -15,9 +15,10 @@ enum ServiceProvider: String, CaseIterable {
     case groq = "Groq"
 }
 
+@MainActor
 @Observable
 final class AppViewModel {
-    var stream: Bool = false
+    var stream: Bool = true
     var openaiAPIKey: String = ""
     var openRouterAPIKey: String = ""
     var groqAPIKey: String = ""

Sources/LLMChatOpenAI/ChatCompletion.swift

@@ -8,7 +8,7 @@
 import Foundation
 
 /// A struct that represents a chat completion response.
-public struct ChatCompletion: Decodable {
+public struct ChatCompletion: Decodable, Sendable {
     /// A unique identifier for the chat completion.
     public let id: String
 
@@ -35,7 +35,7 @@ public struct ChatCompletion: Decodable {
     /// The usage statistics for the completion request.
     public let usage: Usage?
 
-    public struct Choice: Decodable {
+    public struct Choice: Decodable, Sendable {
         /// The index of the choice in the list of choices.
         public let index: Int
 
@@ -49,7 +49,7 @@ public struct ChatCompletion: Decodable {
         /// Log probability information for the choice.
         public let logprobs: Logprobs?
 
-        public struct Message: Decodable {
+        public struct Message: Decodable, Sendable {
             /// The role of the author of this message.
             public let role: String
 
@@ -62,7 +62,7 @@ public struct ChatCompletion: Decodable {
             /// An array of ``ToolCall`` generated by the model.
             public let toolCalls: [ToolCall]?
 
-            public struct ToolCall: Codable {
+            public struct ToolCall: Decodable, Sendable {
                 /// The ID of the tool call.
                 public let id: String
 
@@ -72,7 +72,7 @@ public struct ChatCompletion: Decodable {
                 /// The function that the model called.
                 public let function: Function
 
-                public struct Function: Codable {
+                public struct Function: Codable, Sendable {
                     /// The name of the function to call.
                     public let name: String
 
@@ -91,7 +91,7 @@ public struct ChatCompletion: Decodable {
         }
 
         /// The reason the model stopped generating tokens.
-        public enum FinishReason: String, Decodable {
+        public enum FinishReason: String, Decodable, Sendable {
             /// The model reached a natural stop point or a provided stop sequence.
             case stop
 
@@ -105,14 +105,14 @@ public struct ChatCompletion: Decodable {
             case contentFilter = "content_filter"
         }
 
-        public struct Logprobs: Decodable {
+        public struct Logprobs: Decodable, Sendable {
             /// An array of message content tokens with log probability information.
             public let content: [TokenInfo]?
 
             /// An array of message refusal tokens with log probability information.
             public let refusal: [TokenInfo]?
 
-            public struct TokenInfo: Decodable {
+            public struct TokenInfo: Decodable, Sendable {
                 /// The token.
                 public let token: String
 
@@ -144,7 +144,7 @@ public struct ChatCompletion: Decodable {
         }
     }
 
-    public struct Usage: Decodable {
+    public struct Usage: Decodable, Sendable {
         /// Number of tokens in the generated completion.
         public let completionTokens: Int
 
@@ -160,7 +160,7 @@ public struct ChatCompletion: Decodable {
         /// Breakdown of tokens used in the prompt.
         public let promptTokensDetails: PromptTokensDetails?
 
-        public struct CompletionTokensDetails: Decodable {            
+        public struct CompletionTokensDetails: Decodable, Sendable {
             /// Tokens generated by the model for reasoning.
             public let reasoningTokens: Int
 
@@ -169,7 +169,7 @@ public struct ChatCompletion: Decodable {
             }
         }
 
-        public struct PromptTokensDetails: Decodable {
+        public struct PromptTokensDetails: Decodable, Sendable {
             /// Cached tokens present in the prompt.
             public let cachedTokens: Int
 

Sources/LLMChatOpenAI/ChatCompletionChunk.swift

@@ -8,7 +8,7 @@
 import Foundation
 
 /// A struct that represents a streamed chunk of a chat completion response.
-public struct ChatCompletionChunk: Decodable {
+public struct ChatCompletionChunk: Decodable, Sendable {
     /// A unique identifier for the chat completion. Each chunk has the same identifier.
     public let id: String
 
@@ -35,7 +35,7 @@ public struct ChatCompletionChunk: Decodable {
     /// Usage statistics for the completion request.
     public let usage: Usage?
 
-    public struct Choice: Decodable {
+    public struct Choice: Decodable, Sendable {
         /// The index of the choice in the list of choices.
         public let index: Int
 
@@ -49,7 +49,7 @@ public struct ChatCompletionChunk: Decodable {
         /// Log probability information for the choice.
         public let logprobs: Logprobs?
 
-        public struct Delta: Decodable {
+        public struct Delta: Decodable, Sendable {
             /// The role of the author of this message.
             public let role: String?
 
@@ -62,7 +62,7 @@ public struct ChatCompletionChunk: Decodable {
             /// An array of ``ToolCall`` generated by the model.
             public var toolCalls: [ToolCall]?
 
-            public struct ToolCall: Decodable {
+            public struct ToolCall: Decodable, Sendable {
                 /// The ID of the tool call.
                 public let id: String?
 
@@ -72,7 +72,7 @@ public struct ChatCompletionChunk: Decodable {
                 /// The function that the model called.
                 public var function: Function?
 
-                public struct Function: Decodable {
+                public struct Function: Decodable, Sendable {
                     /// The name of the function to call.
                     public var name: String?
 
@@ -90,7 +90,7 @@ public struct ChatCompletionChunk: Decodable {
         }
 
         /// The reason the model stopped generating tokens.
-        public enum FinishReason: String, Decodable {
+        public enum FinishReason: String, Decodable, Sendable {
             /// The model reached a natural stop point or a provided stop sequence.
             case stop
 
@@ -104,14 +104,14 @@ public struct ChatCompletionChunk: Decodable {
             case contentFilter = "content_filter"
         }
 
-        public struct Logprobs: Decodable {
+        public struct Logprobs: Decodable, Sendable {
             /// An array of message content tokens with log probability information.
             public let content: [TokenInfo]?
 
             /// An array of message refusal tokens with log probability information.
             public let refusal: [TokenInfo]?
 
-            public struct TokenInfo: Decodable {
+            public struct TokenInfo: Decodable, Sendable {
                 /// The token.
                 public let token: String
 
@@ -136,7 +136,7 @@ public struct ChatCompletionChunk: Decodable {
         }
     }
 
-    public struct Usage: Decodable {
+    public struct Usage: Decodable, Sendable {
         /// Number of tokens in the generated completion.
         public let completionTokens: Int?
 
@@ -152,7 +152,7 @@ public struct ChatCompletionChunk: Decodable {
         /// Breakdown of tokens used in the prompt.
         public let promptTokensDetails: PromptTokensDetails?
 
-        public struct CompletionTokensDetails: Decodable {
+        public struct CompletionTokensDetails: Decodable, Sendable {
             /// Tokens generated by the model for reasoning.
             public let reasoningTokens: Int
 
@@ -161,7 +161,7 @@ public struct ChatCompletionChunk: Decodable {
             }
         }
 
-        public struct PromptTokensDetails: Decodable {
+        public struct PromptTokensDetails: Decodable, Sendable {
             /// Cached tokens present in the prompt.
             public let cachedTokens: Int
 

Sources/LLMChatOpenAI/ChatMessage.swift

@@ -8,7 +8,7 @@
 import Foundation
 
 /// A struct that represents a message in a chat conversation.
-public struct ChatMessage: Encodable {
+public struct ChatMessage: Encodable, Sendable {
     /// The role of the message's author.
     public let role: Role
 
@@ -19,20 +19,20 @@ public struct ChatMessage: Encodable {
     /// Provides the model information to differentiate between participants of the same role.
     public let name: String?
 
-    public enum Role: String, Codable {
+    public enum Role: String, Encodable, Sendable {
         case system
         case user
         case assistant
     }
 
-    public enum Content: Encodable {
+    public enum Content: Encodable, Sendable {
         /// Text content of the message.
         case text(String)
 
         /// Image content of the message.
         case image(String, detail: ImageDetail = .auto)
 
-        public enum ImageDetail: String, Encodable, CaseIterable {
+        public enum ImageDetail: String, Encodable, Sendable, CaseIterable {
             /// High detail mode. The model first sees the low res image (using 85 tokens) and then creates detailed crops using 170 tokens for each 512px x 512px tile.
             case high
 

Sources/LLMChatOpenAI/ChatOptions.swift

@@ -9,7 +9,7 @@ import Foundation
 import JSONSchema
 
 /// A struct that represents the options of a chat completion request.
-public struct ChatOptions: Encodable {
+public struct ChatOptions: Encodable, Sendable {
     /// Number between -2.0 and 2.0.
     /// Positive values penalize new tokens based on their existing frequency in the text so far, decreasing the model's likelihood to repeat the same line verbatim.
     public let frequencyPenalty: Double?
@@ -118,7 +118,7 @@ public struct ChatOptions: Encodable {
         self.user = user
     }
 
-    public struct ResponseFormat: Encodable {
+    public struct ResponseFormat: Encodable, Sendable {
         /// The type of response format being defined.
         public let type: ResponseType
 
@@ -145,13 +145,13 @@ public struct ChatOptions: Encodable {
             case jsonSchema = "json_schema"
         }
 
-        public enum ResponseType: String, Codable, CaseIterable {
+        public enum ResponseType: String, Codable, Sendable, CaseIterable {
             case text
             case jsonObject = "json_object"
             case jsonSchema = "json_schema"
         }
 
-        public struct Schema: Encodable {
+        public struct Schema: Encodable, Sendable {
             /// The name of the response format.
             /// Must be a-z, A-Z, 0-9, or contain underscores and dashes, with a maximum length of 64.
             public let name: String

Sources/LLMChatOpenAI/LLMChatOpenAI.swift

@@ -8,7 +8,7 @@
 import Foundation
 
 /// A struct that facilitates interactions with OpenAI and OpenAI-compatible chat completion APIs.
-public struct LLMChatOpenAI {
+public struct LLMChatOpenAI: Sendable {
     private let apiKey: String
     private let endpoint: URL
     private var headers: [String: String]? = nil

Sources/LLMChatOpenAI/LLMChatOpenAIError.swift

@@ -8,7 +8,7 @@
 import Foundation
 
 /// An enum that represents errors from the chat completion request.
-public enum LLMChatOpenAIError: LocalizedError {
+public enum LLMChatOpenAIError: LocalizedError, Sendable {
     /// A case that represents a server-side error response.
     ///
     /// - Parameter message: The error message from the server.